-stable review patch. If anyone has any objections, please let us know.

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[VLAN]: Fix early vlan adding leads to not functional device

OK, I can see what's happening here. eth0 doesn't detect link-up untilafter a few seconds, so when the vlan interface is opened immediatelyafter eth0 has been opened, it inherits the link-down state. Subsequentlythe vlan interface is never properly activated and are thus unable totransmit any packets.

dev->state bits are not supposed to be manipulated directly. Somethingsimilar is probably needed for the netif_device_present() bit, althoughI don't know how this is meant to work for a virtual device.